961017019631 has 8 divisors (see below), whose sum is σ = 1003170626304. Its totient is φ = 919715001120.

The previous prime is 961017019621. The next prime is 961017019639. The reversal of 961017019631 is 136910710169.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 961017019631 - 2³⁰ = 959943277807 is a prime.

It is a super-2 number, since 2×961017019631² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (961017019639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212894735 + ... + 212899248.

It is an arithmetic number, because the mean of its divisors is an integer number (125396328288).

Almost surely, 2^961017019631 is an apocalyptic number.

961017019631 is a deficient number, since it is larger than the sum of its proper divisors (42153606673).

961017019631 is a wasteful number, since it uses less digits than its factorization.

961017019631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425794081.

The product of its (nonzero) digits is 61236, while the sum is 44.

The spelling of 961017019631 in words is "nine hundred sixty-one billion, seventeen million, nineteen thousand, six hundred thirty-one".